Believe it or not, this burger is not made from beef. We did a taste test to see if it's as good as the real thing.

This is by far the largest restaurant chain to feature the plant-based burger.

Bay Area residents have been able to sample the burger for a while: It's served at the Oakland Coliseum, Gott's Roadside restaurants started featuring it earlier this year, and Safeway has been carrying the burgers for home consumption.

Unfortunately, California residents will have to do a little travelling to sample the new "Impossible Slider." The closest White Castle locations are in Nevada.

Go here to find out where you can find the Impossible Burger in the Bay Area.